11+ Maths: Comparing and Ordering Large Numbers (A/B)
19 October 2026
Comparing and ordering large numbers
Understanding how to compare and order large numbers is a key skill for the 11+ maths exam. Children are often asked to arrange numbers in order, spot the largest or smallest, or compare two values quickly and accurately.
How to compare large numbers
Start by looking at the number of digits in each value. A number with more digits is always greater. If two numbers have the same number of digits, compare the digits from left to right, starting with the highest place value.
Ordering a list of numbers
To order several large numbers, line them up vertically so the digits are in columns. This makes it easier to spot which number is largest or smallest. For example, compare each digit in the millions, then the hundreds of thousands, and so on.
Common mistakes to watch for
Children sometimes miss zeros or misread place values, especially with numbers in the millions or billions. Encourage your child to read each number aloud and check each digit carefully before answering.
Key insight: Practising with a range of numbers, including those in the hundreds of millions and billions. Builds confidence and accuracy, so your child is ready for any question format they may face.
Supporting independent practice
At home, use real-life examples such as population figures, distances, or large sums of money to make practice meaningful. Encourage your child to explain their thinking as they compare or order numbers.
